<template>
  <div class="comment-container">
    <div
      class="comment-list"
      v-loading="listLoading && listQuery.currentPage == 1"
      ref="infiniteBody"
    >
      <template v-if="list.length">
        <div v-for="(item, i) in list" :key="i" class="item">
          <div class="head">
            <el-avatar
              :size="40"
              :src="define.comUrl + item.creatorUserHeadIcon"
              class="avatar"
            />
            <p class="username">
              {{ item.creatorUserName }}/{{ item.creatorUserId }}
            </p>
            <el-link
              :underline="false"
              class="del-btn"
              @click="delComment(item.id, i)"
              type="danger"
              v-if="item.isDel"
              >删除</el-link
            >
            <span class="time">{{ item.creatorTime | toDate() }}</span>
          </div>
          <div class="content">
            <p class="text">{{ item.text }}</p>
            <div class="img-list" v-if="item.imageList.length">
              <el-image
                :src="define.comUrl + cItem.url"
                class="img-item"
                v-for="(cItem, ci) in item.imageList"
                :key="ci"
                :preview-src-list="getImgList(item.imageList)"
                :z-index="10000"
              >
              </el-image>
            </div>
            <div class="file-List" v-if="item.fileList.length">
              <UploadFz v-model="item.fileList" detailed disabled></UploadFz>
            </div>
          </div>
        </div>
      </template>
      <el-empty description="暂无数据" :image-size="120" v-else></el-empty>
    </div>
    <el-dialog
      title="流程评论"
      :visible.sync="dialogVisible"
      :close-on-click-modal="false"
      class="jsbos-dialog jsbos-dialog_center"
      lock-scroll
      append-to-body
      width="600px"
    >
      <el-form
        :model="dataForm"
        :rules="dataRule"
        ref="dataForm"
        label-width="0"
      >
        <el-form-item prop="text">
          <el-input
            v-model="dataForm.text"
            placeholder="请输入评论"
            type="textarea"
            :rows="4"
          />
        </el-form-item>
        <el-form-item>
          <el-upload
            :action="define.comUploadUrl + '/annexpic'"
            :headers="uploadHeaders"
            ref="elUploadImg"
            :on-success="handleImgSuccess"
            multiple
            :show-file-list="false"
            accept="image/*"
            :before-upload="beforeImgUpload"
            :on-exceed="handleImgExceed"
            :limit="9"
            class="upload-btn"
          >
            <el-button size="small" icon="el-icon-picture">图片</el-button>
          </el-upload>
          <el-button size="small" icon="el-icon-upload" @click="uploadFile"
            >附件</el-button
          >
        </el-form-item>
        <el-form-item prop="image" v-if="dataForm.image.length">
          <div class="img-list">
            <div class="img-item" v-for="(item, i) in dataForm.image" :key="i">
              <el-image
                :src="define.comUrl + item.url"
                class=""
                :preview-src-list="getImgList(dataForm.image)"
                :z-index="100"
              >
              </el-image>
              <div class="badge" @click.stop="handleImgRemove(i)">
                <i class="el-icon-close"></i>
              </div>
            </div>
          </div>
        </el-form-item>
        <el-form-item prop="file" v-show="dataForm.file.length">
          <ul class="el-upload-list el-upload-list el-upload-list--text">
            <li
              class="el-upload-list__item is-success"
              v-for="(file, index) in dataForm.file"
              :key="file.fileId"
            >
              <a
                class="el-upload-list__item-name"
                @click="handleFileClick(file)"
              >
                <i class="el-icon-paperclip"></i>{{ file.name }}
              </a>
              <i class="el-icon-view" @click="handleFilePreview(file)"></i>
              <i class="el-icon-download" @click="handleFileClick(file)"></i>
              <label class="el-upload-list__item-status-label">
                <i class="el-icon-upload-success el-icon-circle-check"></i>
              </label>
              <i class="el-icon-close" @click="handleFileRemove(index)"></i>
            </li>
          </ul>
          <fileUploader
            ref="fileUploader"
            :limit="9"
            :fileSize="50"
            type="annex"
            :accept="fileAccept"
            @fileSuccess="fileSuccess"
          />
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogVisible = false"
          >{{ $t("common.cancelButton") }}
        </el-button>
        <el-button type="primary" @click="addComment()" :loading="btnLoading">
          {{ $t("common.confirmButton") }}</el-button
        >
      </span>
    </el-dialog>
    <Preview :visible.sync="previewVisible" :file="activeFile" />
  </div>
</template>

<script>
import {
  getCommentList,
  createComment,
  delComment,
} from "@/api/workFlow/FlowEngine";
import { getDownloadUrl } from "@/api/common";
import Preview from "@/components/Generator/components/Upload/Preview";
import FileUploader from "./FileUploader";

export default {
  name: "comments",
  components: { Preview, FileUploader },
  props: {
    id: { type: String, default: "" },
  },
  data() {
    return {
      list: [],
      listQuery: {
        currentPage: 1,
        pageSize: 20,
        sort: "desc",
        sidx: "",
      },
      total: 0,
      listLoading: false,
      btnLoading: false,
      dataRule: {},
      dataForm: {
        text: "",
        file: [],
        image: [],
      },
      dialogVisible: false,
      finish: false,
      uploadHeaders: { Authorization: this.$store.getters.token },
      imgUploading: false,
      previewVisible: false,
      fileAccept: ".xls,.xlsx,.doc,.docx,.pdf,.txt,.ppt,.pptx",
      activeFile: {},
    };
  },
  methods: {
    init() {
      this.list = [];
      this.listQuery = {
        currentPage: 1,
        pageSize: 20,
        sort: "desc",
        sidx: "",
      };
      this.finish = false;
      this.initData();
      this.$nextTick(() => {
        this.bindScroll();
      });
    },
    bindScroll() {
      let _this = this,
        vBody = _this.$refs.infiniteBody;
      vBody.addEventListener("scroll", function () {
        if (
          vBody.scrollHeight - vBody.clientHeight - vBody.scrollTop <= 600 &&
          !_this.listLoading &&
          !_this.finish
        ) {
          _this.listQuery.currentPage += 1;
          _this.initData();
        }
      });
    },
    initData() {
      this.listLoading = true;
      let query = {
        ...this.listQuery,
        taskId: this.id,
      };
      getCommentList(query)
        .then((res) => {
          let list = res.data.list.map((o) => ({
            ...o,
            fileList: o.file ? JSON.parse(o.file) : [],
            imageList: o.image ? JSON.parse(o.image) : [],
          }));
          if (res.data.list.length < this.listQuery.pageSize) {
            this.finish = true;
          }
          this.list = [...this.list, ...list];
          this.total = res.data.pagination.total;
          this.listLoading = false;
        })
        .catch(() => {
          this.listLoading = false;
        });
    },
    showCommentDialog() {
      this.dialogVisible = true;
      this.dataForm.image = [];
      this.dataForm.file = [];
      this.$nextTick(() => {
        this.$refs.elUploadImg.uploadFiles = [];
        this.$refs["dataForm"].resetFields();
      });
    },
    getImgList(list) {
      const newList = list.map((o) => this.define.comUrl + o.url);
      return newList;
    },
    addComment() {
      this.$refs["dataForm"].validate((valid) => {
        if (valid) {
          this.btnLoading = true;
          let query = {
            text: this.dataForm.text,
            file: JSON.stringify(this.dataForm.file),
            image: JSON.stringify(this.dataForm.image),
            taskId: this.id,
          };
          createComment(query)
            .then((res) => {
              this.$message({
                message: res.msg,
                type: "success",
                duration: 1500,
                onClose: () => {
                  this.dialogVisible = false;
                  this.btnLoading = false;
                  this.init();
                },
              });
            })
            .catch(() => {
              this.btnLoading = false;
            });
        }
      });
    },
    delComment(id, index) {
      this.$confirm(this.$t("common.delTip"), this.$t("common.tipTitle"), {
        type: "warning",
      })
        .then(() => {
          delComment(id).then((res) => {
            this.list.splice(index, 1);
            this.$message({
              type: "success",
              message: res.msg,
            });
          });
        })
        .catch(() => {});
    },
    beforeImgUpload(file) {
      let isRightSize = file.size < 50 * 1024 * 1024;
      if (!isRightSize) {
        this.$message.error(`图片大小超过50MB`);
        return isRightSize;
      }
      let isAccept = new RegExp("image/*").test(file.type);
      if (!isAccept) {
        this.$message.error(`请上传图片`);
        return isAccept;
      }
      if (isRightSize && isAccept) this.imgUploading = true;
      return isRightSize && isAccept;
    },
    handleImgSuccess(res, file, fileList) {
      if (res.code == 200) {
        this.dataForm.image.push({
          name: file.name,
          fileId: res.data.name,
          url: res.data.url,
        });
      } else {
        this.$refs.elUploadImg.uploadFiles.splice(fileList.length - 1, 1);
        fileList.filter((o) => o.uid != file.uid);
        this.$message({ message: res.msg, type: "error", duration: 1500 });
      }
      this.imgUploading = false;
    },
    handleImgExceed(files, fileList) {
      this.$message.warning(`当前限制最多可以上传9张图片`);
    },
    handleImgRemove(index) {
      this.dataForm.image.splice(index, 1);
      this.$refs.elUploadImg.uploadFiles.splice(index, 1);
    },
    uploadFile() {
      const isTopLimit = this.dataForm.file.length > 9;
      if (isTopLimit) {
        this.$message.error(`当前限制最多可以上传9个文件`);
        return false;
      }
      this.$refs.fileUploader && this.$refs.fileUploader.openUploader();
    },
    fileSuccess(data) {
      const isTopLimit = this.dataForm.file.length > 9;
      if (isTopLimit) {
        this.$message.error(`当前限制最多可以上传9个文件`);
        return false;
      }
      this.dataForm.file.push(data);
    },
    handleFileRemove(index) {
      this.dataForm.file.splice(index, 1);
    },
    handleFileClick(file) {
      if (!file.fileId) return;
      getDownloadUrl("annex", file.fileId).then((res) => {
        this.jsbos.downloadFile(res.data.url);
      });
    },
    handleFilePreview(file) {
      this.activeFile = file;
      this.previewVisible = true;
    },
  },
};
</script>
<style lang="scss" scoped>
.comment-container {
  height: 100%;
  overflow: hidden;
  .comment-list {
    height: 100%;
    overflow: auto;
    .item {
      padding: 0 30px;
      margin-bottom: 20px;
      .head {
        display: flex;
        align-items: center;
        .avatar {
          flex-shrink: 0;
          margin-right: 20px;
        }
        .username {
          line-height: 40px;
          color: #333;
          flex: 1;
        }
        .head-right {
          flex-shrink: 0;
        }
        .time {
          flex-shrink: 0;
          font-size: 14px;
          color: #666;
          margin-left: 20px;
        }
      }

      .content {
        font-size: 14px;
        padding-left: 60px;
        .text {
          line-height: 30px;
          color: #666;
        }
        .img-list {
          margin-top: 6px;
          .img-item {
            width: 80px;
            height: 80px;
            overflow: hidden;
            margin: 0 6px 6px 0;
            // border: 1px solid #c0ccda;
            border-radius: 6px;
          }
        }
      }
    }
  }
}
.jsbos-dialog {
  .upload-btn {
    display: inline-block;
    margin-right: 20px;
  }
  .img-list {
    display: flex;

    .img-item {
      width: 40px;
      height: 40px;
      position: relative;
      margin-right: 10px;
      .el-image {
        width: 100%;
        height: 100%;
      }
      .badge {
        background-color: #f56c6c;
        border-radius: 10px;
        color: #fff;
        display: block;
        font-size: 12px;
        height: 18px;
        width: 18px;
        line-height: 18px;
        text-align: center;
        border: 1px solid #fff;
        position: absolute;
        right: -9px;
        top: -9px;
        cursor: pointer;
        z-index: 10001;
      }
    }
  }
  .el-upload-list__item {
    .el-upload-list__item-name {
      margin-right: 70px;
    }
    .el-icon-download {
      display: inline-block;
      position: absolute;
      top: 5px;
      right: 25px;
      cursor: pointer;
      opacity: 0.75;
      color: #606266;
    }
    .el-icon-view {
      display: inline-block;
      position: absolute;
      top: 5px;
      right: 45px;
      cursor: pointer;
      opacity: 0.75;
      color: #606266;
    }
  }
}
</style>
